CN210857271U - Assembled roadbed retaining wall supporting system capable of achieving stepless yielding - Google Patents
Assembled roadbed retaining wall supporting system capable of achieving stepless yielding Download PDFInfo
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- CN210857271U CN210857271U CN201921672085.2U CN201921672085U CN210857271U CN 210857271 U CN210857271 U CN 210857271U CN 201921672085 U CN201921672085 U CN 201921672085U CN 210857271 U CN210857271 U CN 210857271U
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Abstract
The utility model discloses a supporting system of a stepless yielding assembled roadbed retaining wall, which comprises a UHPFRC upright post, a UHPFRC retaining plate, a C-shaped lock catch, a fastening bolt and planting soil; wherein the UHPFRC upright post is provided with a UHPFRC toe board, a UHPFRC strengthening rib, a sliding beam, a pier block and an inner embedded groove; the UHPFRC toe board and the UHPFRC centering rib are arranged on the soil facing side of the UHPFRC upright post; the sliding beams are arranged on two sides of the UHPFRC upright post, and three sliding beams are arranged on each side. The retaining wall support system of the utility model is a prefabricated structure, and has the characteristics of novel structure, easy control of industrialized quality, simple and convenient construction procedure, high construction speed and reusability; the arrangement of the sliding beam can realize body increasing and pressure yielding according to the volume expansion amount of the expanded soil after water absorption, can reduce the energy generated by lateral pressure, effectively prevent overload and improve the stability and safety of a supporting system; planting soil can be sowed in the embedded groove, a retaining structure can be effectively greened, the engineering environment is improved, and organic unification of engineering and environment is realized.
Description
[ technical field ] A method for producing a semiconductor device
The utility model relates to a retaining wall struts the engineering field, especially relates to a can stepless pressure-relief assembled roadbed retaining wall strut system.
[ background of the invention ]
Retaining wall supporting structures are widely used in civil engineering and construction in expansive soil areas, water conservancy and hydropower, railways, bridges and other projects, water and soil conservation and the like as permanent or temporary buildings for preventing soil collapse. However, the expansive rock-soil mass is a high-plasticity soil mass with expansion and contraction properties and hyperconcentration properties, the volume change of the expansive rock-soil mass is influenced by the water content, if the expansive rock-soil mass is restrained when the expansive rock-soil mass is exposed to water, the expansive rock-soil mass exerts a considerable outward expansion thrust on the restrained object, so that the retaining wall constructed in the expansive rock-soil area is required to bear not only the conventional soil pressure, but also the expansion pressure generated by the restrained expansive deformation of the expansive rock-soil mass, therefore, the retaining wall supporting structure in the expansive rock-soil area is often prone to be damaged in the forms of shearing, overturning, slipping and the like, and the stability of the retaining wall supporting structure in the expansive rock-soil area is a problem which is generally felt to be troublesome and unavoidable in practical engineering practice.
Regarding retaining walls in expansive soil areas, the conventional common supporting structure is formed by casting common concrete in situ, the common concrete cast-in-situ supporting structure is formed by casting the common concrete in a construction site, the traditional common concrete supporting structure system does not have a yielding function, and the retaining walls have the defects of low strength, poor tensile property, low construction speed, long construction period, unrecyclability, high later maintenance cost and the like, and part of sites are difficult to meet the conditions of casting in situ. Therefore, a novel retaining wall supporting system which is simple and convenient to construct, high in construction speed, capable of being repeatedly applied and low-carbon, energy-saving and environment-friendly and has a yielding function is urgently needed to solve the problem of rock and soil body supporting in the expansive soil area.
Ultra-high performance steel fiber concrete (UHPFRC) is a novel cement-based composite material with ultrahigh strength, ultrahigh performance, ultrahigh resistance and excellent durability, an assembled retaining wall supporting system with stepless pressure-yielding efficacy made of the material is applied, a retaining plate can increase the volume of a soil body on the inner side of a retaining wall according to actual requirements along a sliding beam, the stepless pressure-yielding function is realized, the huge lateral pressure generated after water absorption and expansion of well-adapted expansive soil is achieved, the stability and the safety of a protection structure are protected, the ultra-high performance steel fiber concrete (UHPFRC) has the advantages of high strength, good tensile property, high construction speed, reusability and the like, and the ultra-high performance steel fiber concrete (UHPFRC) can be applied to emergency rescue work such as slope collapse, slope sliding and the like.
[ Utility model ] content
An object of the utility model is to provide a can step down assembled road bed retaining wall support system, can effectively improve the durability of expansibility soil slope support system and reduce the maintenance cost and the cost in the full life cycle of structure, novel structure has, the constructor is simple and convenient, the construction speed is fast, but reuse's characteristics, can realize increasing the body and step down, can reduce the energy that lateral pressure produced, effectively prevent to transship, still can effectively afforest a retaining structure, improve the engineering environment, realize the organic unity of engineering and environment.
In order to achieve the above object, a technical solution of the present invention is:
a supporting system of a stepless yielding assembled roadbed retaining wall comprises a retaining plate and is characterized in that notches 41 are formed at the left end and the right end of the retaining plate respectively, a stand column is installed on the notches 41 in a matched mode, and a sliding beam 11 matched with the notches 41 is fixed on the stand column; pier blocks 13 for preventing the soil blocking plates from sliding out of the sliding beam 11 are fixed at the end part of the sliding beam 11; the recess 41 connects the retaining plate to the runner beam 11 by means of a clasping device.
In a further improvement, the clasping device is a C-shaped lock catch 5, and a bolt hole 51 is formed on the C-shaped lock catch 5; the fastening bolt 6 passes through the bolt hole 51 to tightly fix the C-shaped lock catch 5 on the sliding beam 11.
In a further improvement, the top of the upright post is provided with an embedded groove 14 for placing planting soil 7; greening plants are sowed in the planting soil 7 and comprise Chinese wistaria, clove and small red leaf walls.
In a further improvement, toe plates are fixed at the bottoms of the upright columns, and supporting ribs are fixed between the toe plates and the upright columns; the supporting ribs are positioned on the soil facing side of the upright post; three sliding beams 11 are fixed on two sides of the upright post, and scale strips 12 used for monitoring slippage are arranged on the surfaces of the sliding beams 11.
The improved structure comprises a vertical column, a toe plate, a UHPFRC (ultra high performance reinforced concrete) toe plate and a retaining plate, wherein the vertical column is an UHPFRC vertical column 1, the toe plate is an UHPFRC toe plate 2, a rib is an UHPFRC rib supporting 3, the retaining plate is an UHPFRC retaining plate 4, the size of the UHPFRC vertical column 1 is 100-150 cm in length, × in width, 30-40 cm in width, × in height, 200-250 cm in height, the size of the UHPFRC toe plate 2 is 30-40 cm in length, × in width, 30-40 cm in width, × in height, 10-12 cm in height, the thickness of the UHPFRC rib supporting 3 is 10-15 cm in thickness, the height is;
the size of the sliding beam 11 is 100-150 cm in length, × in width is 10-12 cm, × in width is 10-12 cm in height, the pier block 13 is a cube with a 12-15 cm edge length, the depth of the embedded groove 14 is 30-50 cm, and the wall thickness at the periphery is 5-8 cm;
the UHPFRC retaining plate 4 is 200-300 cm in length, × in height, 200-250 cm in × in thickness, 10-15 cm in thickness, notches 41 formed in the retaining plate 4 are matched with the sliding beams 11, and the size of each notch 41 is 10-12 cm in width, × in height, 10-12 cm in × in thickness, and 10-15 cm in thickness.
The C-shaped lock catch 5 is further improved, the length of the C-shaped lock catch 5 is 10-12 cm ×, the width of the C-shaped lock catch 5 is 10-12 cm ×, the thickness of the C-shaped lock catch 5 is 4-6 cm, 4-6 bolt holes 51 with the diameter of 3.5 cm-4.0 cm are formed in the C-shaped lock catch 5, and the fastening bolts 6 are high-strength bolts with the diameter of 3.5 cm-4.0 cm.
In a further improvement, the UHPFRC upright post 1, the UHPFRC toe board 2, the UHPFRC righting rib 3, the sliding beam 11, the pier block 13, the UHPFRC retaining board 4 and the C-shaped lock catch 5 are all prefabricated by adopting UHPFRC materials.
The technical effects of the utility model reside in that:
1. the supporting system component is prefabricated by ultra-high performance fiber reinforced concrete (UHPFRC) doped with steel fibers, the UHPFRC is a concrete material with high strength, high toughness and high durability, and the material has better ductility and crack resistance due to the doping of the steel fibers; the UHPFRC material can reduce the consumption of concrete, reduce the dead weight of the structure, improve the long-term performance of a supporting system, reduce the manufacturing cost in the whole life cycle and meet the requirement of the construction industry on the development concept of low carbon, energy conservation, environmental protection and sustainability.
2. The notch of retaining plate and the interlock of skidding roof beam each other, reuse fastening bolt to pass the hole and fix C type hasp on the skidding roof beam to this withstands the retaining plate, when inflation soil absorbs water the inflation and leads to retaining plate to receive great side soil pressure, makes the system of strutting realize the stepless pressure of stepping down according to the position of operating condition adjustment C type hasp, can absorb impact energy and prevent to transship, can effectively promote the stability and the security of strutting the system.
3. The components of the support system are prefabricated components, the selected specifications are consistent, the mold cost can be reduced through batch production, the durability is high, the support system can be repeatedly utilized, the resources are saved, the manufacturing cost is reduced, and the support is more economical; and the support rib and the toe plate are arranged to prevent the system from overturning and breaking, so that the overall rigidity, the deformation resistance and the stability of the support system are improved.
4. The assembly process of the prefabricated parts has low noise and less dust emission, does not need much labor, and reduces the influence on the surrounding environment; meanwhile, planting soil is sowed in the embedded groove in the top of the upright column, and greening plants are planted, so that an ecological supporting system structure is realized.
[ description of the drawings ]
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained without inventive work, wherein:
fig. 1 is a schematic structural view of the supporting system of the stepless yielding assembled roadbed retaining wall of the utility model;
fig. 2 is a top view of the supporting system of the assembled roadbed retaining wall capable of stepless yielding;
fig. 3 is a schematic structural diagram of the UHPFRC column of the supporting system of the stepless yielding assembled roadbed retaining wall of the utility model;
fig. 4 is a schematic structural diagram of the UHPFRC retaining plate of the supporting system of the stepless yielding assembled roadbed retaining wall of the utility model;
fig. 5 is a schematic structural view of the C-shaped lock catch of the supporting system of the stepless yielding assembled roadbed retaining wall of the utility model;
fig. 6 is a front view of the connection between the C-shaped lock catch and the fastening bolt of the supporting system of the retaining wall of the roadbed of the stepless yielding assembly type of the utility model;
wherein, 1 is UHPFRC upright post, 11 is slide beam, 12 is scale bar, 13 is pier block, 14 is embedded groove, 2 is UHPFRC toe board, 3 is UHPFRC strengthening rib, 4 is UHPFRC retaining plate, 41 is notch, 5 is C-shaped lock catch, 51 is bolt hole, 6 is fastening bolt, 7 is planting soil.
[ detailed description ] embodiments
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
Example 1:
as shown in fig. 1-6, the utility model provides a supporting system of a stepless yielding assembled roadbed retaining wall, which comprises a UHPFRC upright post 1, a UHPFRC retaining plate 4, a C-shaped lock catch 5, a fastening bolt 6 and planting soil 7; wherein the UHPFRC upright post 1 is provided with a UHPFRC toe board 2, a UHPFRC righting rib 3, a sliding beam 11, a pier block 13 and an inner embedded groove 14; the UHPFRC toe boards 2 and the UHPFRC centering ribs 3 are arranged on the soil facing side of the UHPFRC upright post 1; the sliding beams 11 are arranged on two sides of the UHPFRC upright post 1, three sliding beams 11 are arranged on each side, and the surface of each sliding beam 11 is provided with a scale bar 12 for monitoring slippage; the pier blocks 13 are arranged at the tail ends of the sliding beams 11 and are used for preventing the UHPFRC retaining plates 4 from sliding out; the inner embedded groove 14 is arranged at the top of the UHPFRC upright post 1 and is used for sowing planting soil 7; the UHPFRC retaining plate 4 is provided with a notch 41 which can be matched and butted with the sliding beam 11, and a fastening bolt 6 passes through the hole 5 on the C-shaped lock catch 5 to fix the C-shaped lock catch 5 on the sliding beam 11, so that the UHPFRC retaining plate 4 is fixed.
In the embodiment, the size of the UHPFRC upright post 1 is 100cm in length, × cm in width, × cm in width and 200cm in height, the size of the UHPFRC toe board 2 is 30cm in length, × cm in width, × cm in height and 10cm in height, the thickness of the UHPFRC supporting rib 3 is 10cm, the height is 200cm, and the width is the same as the width of the toe board 2.
In the embodiment, the size of the sliding beam 11 is 100cm in length, × in width, × in width and 10cm in height, the pier blocks 13 are cubes with the edge length of 12cm, the depth of the embedded groove 14 is 30cm, and the wall thickness of the periphery of the embedded groove is 5 cm.
In this embodiment, the UHPFRC retaining plate 4 has a length of 200cm × and a height of 200cm × and a thickness of 10cm, the retaining plate 4 is provided with a notch 41 matching with the sliding beam 11, and the notch 41 has a size of × width and a height of 10cm × and a thickness of 10 cm.
In this embodiment, the C-shaped lock catch 5 has a surface length of 10cm ×, a width of 10cm × and a thickness of 4 cm.
In this embodiment, the C-shaped lock catch 5 is provided with 4 bolt holes 51 with a diameter of 3.5 cm.
In the present embodiment, the fastening bolt 6 is a high-strength bolt having a diameter of 3.5 cm.
In the embodiment, the UHPFRC upright posts 1, the UHPFRC toe boards 2, the UHPFRC righting ribs 3, the sliding beams 11, the pier blocks 13, the UHPFRC soil retaining boards 4 and the C-shaped latches 5 are all prefabricated by using UHPFRC materials.
In this embodiment, the UHPFRC material is an ultra-high performance fiber reinforced concrete, and its composition and mixing ratio are as follows: 390kg/m cement3(ii) a Silicon powder 35kg/m3(ii) a 160kg/m of fly ash3(ii) a 900kg/m stone3(ii) a 800kg/m sandstone3(ii) a High-efficiency water reducing agent 12kg/m3(ii) a Steel fiber 50kg/m3(ii) a 125kg/m water3。
In the embodiment, the main particle size of the silicon powder is 1 nm-160 nm; the main grain diameter of the fly ash is 1 nm-4 nm.
In this embodiment, the steel fiber has a diameter ranging from 0.10mm to 0.25mm and a length ranging from 10mm to 16 mm.
In the embodiment, planting soil 7 is sprayed in the embedded groove 14, and red-leaf small-wall greening plants are sown in the planting soil 7.
In the embodiment, the stepless yielding is realized by adjusting the position of the C-shaped lock catch 5 on the sliding beam 11 by sliding to move the UHPFRC soil retaining plate 4 backward, thereby increasing the volume of the filled soil or the soil on one side of the slope.
As shown in fig. 1-6, the utility model provides a can let in a stepless way and press construction method of assembled road bed retaining wall support system, including the following step:
step 1: determining design parameters of a stepless yielding UHPFRC assembled retaining wall supporting system according to actual engineering calculation, pouring a UHPFRC upright post 1, and then pouring a UHPFRC retaining plate 4 and a C-shaped lock catch 5;
step 2: cleaning and leveling a field, and hoisting a UHPFRC upright post 1 at a designed elevation;
and step 3: splicing the UHPFRC retaining plate 4 with the UHPFRC upright post 1, wherein a notch 41 at one end of the UHPFRC retaining plate 4 is in matched butt joint with the sliding beam 11, and the bottom of the retaining plate is tightly attached to the ground;
and 4, step 4: hoisting the UHPFRC upright post 1 at the other end of the UHPFRC retaining plate 4 to ensure that the notch 41 at the other side of the UHPFRC retaining plate 4 is in matched butt joint with the sliding beam 11;
and 5: finally, fastening bolts 6 penetrate through the holes 51 to fix the C-shaped lock catches 5 on the sliding beams 11 so as to fix the UHPFRC soil retaining plate 4, and after the water absorption volume of the soil body expands, the positions of the C-shaped lock catches 5 can be adjusted randomly so that the supporting system can realize stepless increase of the volume, thereby realizing stepless yielding of the supporting system and improving the stability and the safety of the supporting system;
step 6: repeating the steps 2-5 to complete the construction of the stepless yielding UHPFRC assembled retaining wall supporting system;
and 7: after the construction of the supporting and protecting system of the stepless yielding assembled roadbed retaining wall is completed, planting soil 7 is spray-sown in the inner embedded groove 14, and red-leaf small-wall greening plants with strong adaptability are sown in the planting soil 7.
While the embodiments of the invention have been disclosed above, it is not limited to the applications set forth in the description and embodiments, but is capable of being applied in all kinds of fields adapted to the invention, and further modifications may readily be made by those skilled in the art, and the invention is therefore not limited to the details shown and described herein, without departing from the general concept defined by the claims and their equivalents.
Claims (7)
1. A supporting system of a stepless yielding assembled roadbed retaining wall comprises a retaining plate and is characterized in that notches (41) are formed at the left end and the right end of the retaining plate respectively, a stand column is installed in the notches (41) in a matched mode, and sliding beams (11) matched with the notches (41) are fixed on the stand column; pier blocks (13) for preventing the soil retaining plate from sliding out of the sliding beam (11) are fixed at the end part of the sliding beam (11); the notch (41) connects the retaining plate to the glide beam (11) by means of a clasping device.
2. The stepless yielding assembled roadbed retaining wall supporting system according to claim 1, wherein the clasping device is a C-shaped lock catch (5), and a bolt hole (51) is formed on the C-shaped lock catch (5); the fastening bolt (6) passes through the bolt hole (51) to tightly hold the C-shaped lock catch (5) on the sliding beam (11).
3. The supporting system of the stepless yielding assembled roadbed retaining wall as claimed in claim 1, wherein the top of the upright post is formed with an embedded groove (14) for placing planting soil (7); greening plants are sowed in the planting soil (7), and the greening plants comprise Chinese wistaria, clove and small red leaf walls.
4. The stepless yielding assembled roadbed retaining wall supporting system of claim 3, wherein the bottom of the upright post is fixed with a toe board, and a supporting rib is fixed between the toe board and the upright post; the supporting ribs are positioned on the soil facing side of the upright post; three sliding beams (11) are fixed on two sides of the upright post, and scale strips (12) used for monitoring the sliding amount are arranged on the surfaces of the sliding beams (11).
5. The stepless yielding assembled roadbed retaining wall supporting system as claimed in claim 4, wherein the upright column is a UHPFRC upright column (1), the toe board is a UHPFRC toe board (2), the supporting rib is a UHPFRC supporting rib (3), the retaining plate is a UHPFRC retaining plate (4), the size of the UHPFRC upright column (1) is 100-150 cm long ×, 30-40 cm wide × and 200-250 cm high, the size of the UHPFRC toe board (2) is 30-40 cm long × and 30-40 cm wide × and 10-12 cm high, the thickness of the UHPFRC supporting rib (3) is 10-15 cm, the height is 200-250 cm, and the width is the same as that of the toe board (2);
the size of the sliding beam (11) is 100-150 cm in length, × in width is 10-12 cm, × in width is 10-12 cm, and 10-12 cm in height is provided, the pier block (13) is a cube with a 12-15 cm edge length, the depth of the inner caulking groove (14) is 30-50 cm, and the peripheral wall thickness is 5-8 cm;
the UHPFRC retaining plate (4) is 200-300 cm in length, × in height, 200-250 cm in thickness, × in thickness, 10-15 cm in thickness, notches (41) arranged on the retaining plate (4) are matched with the sliding beams (11), and the size of each notch (41) is 10-12 cm in width, × in height, 10-12 cm in thickness, × in thickness, and 10-15 cm in thickness.
6. The stepless yielding assembled roadbed retaining wall supporting system as claimed in claim 2, wherein the size of the C-shaped lock catch (5) is 10-12 cm in length, × in width, 10-12 cm in thickness, × in thickness, 4-6 cm in thickness, 4-6 bolt holes (51) with the diameter of 3.5-4.0 cm are formed in the C-shaped lock catch (5), and the fastening bolts (6) are high-strength bolts with the diameter of 3.5-4.0 cm.
7. The stepless yielding assembly type roadbed retaining wall supporting system as claimed in claim 5, wherein the UHPFRC upright posts (1), the UHPFRC toe boards (2), the UHPFRC supporting ribs (3), the sliding beams (11), the pier blocks (13), the UHPFRC retaining plates (4) and the C-shaped lock catches (5) are all prefabricated by adopting UHPFRC materials.
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| CN201921672085.2U CN210857271U (en) | 2019-10-08 | 2019-10-08 | Assembled roadbed retaining wall supporting system capable of achieving stepless yielding |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110565685A (en) * | 2019-10-08 | 2019-12-13 | 岳阳市公路桥梁基建总公司 | stepless pressure-yielding assembled retaining wall supporting system and construction method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110565685A (en) * | 2019-10-08 | 2019-12-13 | 岳阳市公路桥梁基建总公司 | stepless pressure-yielding assembled retaining wall supporting system and construction method |
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